A recreation of the Underground Complex map from Infocom's Suspended packaging. (First edition.)
Also includes the robot symbol disks as a separate image.
Drawn in Inkscape by Andrew Plotkin.
The original map was set in ITC Quorum, a commercial font. In the interest of license cleanliness (or just because I'm cheap), I have changed this to Lato, with Marcellus as the title font. I've also adjusted the colors to look better on-screen.